This is the start of the stable review cycle for the 6.6.156 release. There are 91 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.

Responses should be made by Wed, 02 Sep 2026 13:32:19 +0000. Anything received after that time might be too late.

The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.156-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y and the diffstat can be found below.

thanks,

greg k-h

------------- Pseudo-Shortlog of commits:

Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 6.6.156-rc1

Miguel Peñaranda mig.penaranda07@gmail.com usb: usbfs: fix use-after-free of usb_device in usbdev_release()

Shuangpeng Bai shuangpeng.kernel@gmail.com USB: c67x00: fix use-after-free in c67x00_add_iso_urb()

Johan Hovold johan@kernel.org USB: serial: spcp8x5: drop broken carrier detect support

Jiale Yao yaojiale02@163.com USB: serial: option: fix slab OOB read in interrupt URB callback

Will Porter mrwillporter@gmail.com ALSA: usb-audio: Complete cleanup after system-resume errors

Marouane El Moufid eun0us@espilon.net ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output()

Griffin Kroah-Hartman griffin@kroah.com usb: core: Strengthen error handling in hub_hub_status()

Griffin Kroah-Hartman griffin@kroah.com usb: core: Add lock to usb_wakeup_notification()

Christian Borntraeger borntraeger@linux.ibm.com KVM: s390: vsie: zero stale crypto bits

Bartosz Golaszewski bartosz.golaszewski@oss.qualcomm.com crypto: qce - Remove unsafe/deprecated algorithms

Thorsten Blum thorsten.blum@linux.dev crypto: mxs-dcp - fix source scatterlist length access

Md Sadre Alam md.alam@oss.qualcomm.com crypto: qce - fix CCM AAD buffer underallocation

Thorsten Blum thorsten.blum@linux.dev crypto: atmel-tdes - use scatterlist length before DMA mapping

Eric Biggers ebiggers@kernel.org mm/swap: reject swapon() on filesystem-level encrypted files

Kyle Zeng kylebot@openai.com ipv6: seg6: clear IPv4 control block on IPIP decapsulation

Norbert Szetei norbert@doyensec.com net: bridge: mcast: fix use-after-free of a master VLAN's multicast context

Zihan Xi zihanx@nebusec.ai xfrm: fix xfrm_state_construct() auth-trunc leak

Asim Viladi Oglu Manizada manizada@pm.me xfrm: ah6: validate routing header segments_left

Zhiling Zou roxy520tt@gmail.com xfrm: drop ESP-in-TCP packets with no ingress device

Sabrina Dubroca sd@queasysnail.net xfrm: espintcp: fix UAF during close

Pratik Vishwakarma Pratik.Vishwakarma@amd.com x86/CPU/AMD: Carve out a Zen5 models range

Perry Yuan perry.yuan@amd.com x86/CPU/AMD: Add models 0x60-0x6f to the Zen5 range

Wenkuan Wang Wenkuan.Wang@amd.com x86/CPU/AMD: Add models 0x10-0x1f to the Zen5 range

Mario Limonciello mario.limonciello@amd.com x86/CPU/AMD: Add more models to X86_FEATURE_ZEN5

Borislav Petkov (AMD) bp@alien8.de x86/CPU/AMD: Add X86_FEATURE_ZEN5

Jiayuan Chen jiayuan.chen@linux.dev tls: device: fix out-of-bounds write in tls_append_frag()

Shuangpeng Bai shuangpeng.kernel@gmail.com usb: gadget: f_tcm: keep port count until LUN teardown completes

Aleksandr Nogikh nogikh@google.com usb: usbtest: disable dynamic ID support

Baokun Li libaokun@linux.alibaba.com fuse: fix invalidate lock leak on open O_TRUNC DAX failure

Baokun Li libaokun@linux.alibaba.com fuse: fix invalidate lock leak on setattr writeback failure

Lucas De Marchi ldemarchi@nvidia.com xhci: dbgtty: Fix unregister on tty_alloc_driver() failure

Lucas De Marchi ldemarchi@nvidia.com xhci: dbgtty: Fix unregister on tty_register_driver() failure

Semih Baskan strst.gs@gmail.com usb: xhci: Handle USB3 port events when there is one roothub

Haoxiang Li lihaoxiang@isrc.iscas.ac.cn accessibility: speakup: unregister tty ldisc on later init failures

Griffin Kroah-Hartman griffin@kroah.com fpga: dfl: fme: add error handling

Darrick J. Wong djwong@kernel.org xfs: remove file_path tracepoint data

Chengfeng Ye nicoyip.dev@gmail.com Bluetooth: hci_sync: Fix accept list UAF during suspend

Zijun Hu zijun.hu@oss.qualcomm.com Bluetooth: hci_sync: Use bt_dev_err() to log error message in hci_update_event_filter_sync()

Baul Lee baul.lee@xbow.com HID: pidff: fix OOB write when hid->inputs is empty

Tomasz Pakuła tomasz.pakula.oficjalny@gmail.com HID: pidff: clang-format pass

Tomasz Pakuła tomasz.pakula.oficjalny@gmail.com HID: pidff: Support device error response from PID_BLOCK_LOAD

Ibrahim Hashimov security@auditcode.ai HID: uclogic: fix use-after-free of inrange_timer on remove

Raman Varabets kernel-linux-20260610-80b7ab08@raman.v1.sg HID: ft260: fix stack-use-after-return write in I2C read race

Michael Zaidman michael.zaidman@gmail.com HID: ft260: validate i2c input report length

Jiangshan Yi yijiangshan@kylinos.cn HID: nintendo: stop device IO before hid_hw_stop on probe failure

Ibrahim Hashimov security@auditcode.ai nvmet-tcp: bound SGL data length before allocating command buffers

Weiwen Hu huweiwen@linux.alibaba.com nvme: rename CDR/MORE/DNR to NVME_STATUS_*

Weiwen Hu huweiwen@linux.alibaba.com nvme: fix status magic numbers

Weiwen Hu huweiwen@linux.alibaba.com nvme: rename nvme_sc_to_pr_err to nvme_status_to_pr_err

Jose Villaseñor Montfort pepemontfort@gmail.com HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()

Christopher Kodama ckhordiasma@gmail.com HID: magicmouse: re-enable multitouch after reset-resume

Bryam Vargas hexlabsecurity@proton.me nfc: nci: add data_len bound checks to activation parameter extractors

Ryusuke Konishi konishi.ryusuke@gmail.com nilfs2: reject invalid block index in GC ioctl

Ryusuke Konishi konishi.ryusuke@gmail.com nilfs2: correct return value kernel-doc descriptions for ioctl functions

Guanghui Yang 3497809730@qq.com ext4: propagate errors from fast commit range replay

Baokun Li libaokun1@huawei.com ext4: make some fast commit functions reuse extents path

Kemeng Shi shikemeng@huaweicloud.com ext4: make state in ext4_mb_mark_bb to be bool

DaeMyung Kang charsyam@gmail.com ksmbd: harden file lifetime during session teardown

Jia Jie Ho jiajie.ho@starfivetech.com crypto: starfive - Do not free stack buffer

Aboorva Devarajan aboorvad@linux.ibm.com powerpc/hv-gpci: fix preempt count leak in sysfs show paths

Johannes Berg johannes.berg@intel.com net/sched: initialize noop_qdisc owner

Eric Dumazet edumazet@google.com net/sched: Fix mirred deadlock on device recursion

Stephen Smalley stephen.smalley.work@gmail.com selinux: switch two allocations to use kzalloc_objs()

Kuniyuki Iwashima kuniyu@google.com smc: Use __sk_dst_get() and dst_dev_rcu() in smc_vlan_by_tcpsk().

Cristian Ciocaltea cristian.ciocaltea@collabora.com ASoC: nau8821: Cancel pending work before suspend

Sasha Levin sashal@kernel.org Revert "PM: sleep: Use complete() in device_pm_sleep_init()"

Michael Neuling mikey@neuling.org riscv: Fix register corruption from uninitialized cregs on error

Jiayuan Chen jiayuan.chen@linux.dev bpf: Fix use-after-free in offloaded map/prog info fill

Cristian Ciocaltea cristian.ciocaltea@collabora.com ASoC: nau8821: Cancel delayed work on component remove

Kuniyuki Iwashima kuniyu@google.com smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

Kuniyuki Iwashima kuniyu@google.com smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().

Oliver Upton oliver.upton@linux.dev KVM: arm64: Prevent access to vCPU events before init

Kuniyuki Iwashima kuniyu@google.com smc: Fix use-after-free in __pnet_find_base_ndev().

Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp can: j1939: make j1939_sk_bind() fail if device is no longer registered

Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp can: j1939: add missing calls in NETDEV_UNREGISTER notification handler

Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp can: j1939: implement NETDEV_UNREGISTER notification handler

Vladimir Riabchun ferr.lambarginio@gmail.com mISDN: hfcpci: Fix warning when deleting uninitialized timer

Wentao Liang vulab@iscas.ac.cn media: platform: exynos4-is: Add hardware sync wait to fimc_is_hw_change_mode()

Namjae Jeon linkinjeon@kernel.org exfat: fix double free in delayed_free

Dylan Wolff wolffd@comp.nus.edu.sg jfs: Fix null-ptr-deref in jfs_ioc_trim

Nick Child nnac123@linux.ibm.com ibmvnic: Use kernel helpers for hex dumps

Vasiliy Kovalev kovalev@altlinux.org jfs: add check read-only before txBeginAnon() call

Vasiliy Kovalev kovalev@altlinux.org jfs: add check read-only before truncation in jfs_truncate_nolock()

Sebastian Andrzej Siewior bigeasy@linutronix.de bpf: Remove tst_run from lwt_seg6local_prog_ops.

Kyle Zeng kylebot@openai.com perf: Reject exited events as group leaders

Tao Lyu tao.lyu@epfl.ch bpf: Ensure reg is PTR_TO_STACK in process_iter_arg

Ralf Lici ralf@mandelbit.com Revert "usb: phy: fsl-usb: Fix use-after-free in delayed work during device removal"

Vishnu Razdan vrazdan@openai.com io_uring/io-wq: fix worker accounting when canceling creation callbacks

Eric Biggers ebiggers@kernel.org ext4: don't enable DAX on new encrypted files

Jinu Kim kimjw04271234@gmail.com KVM: x86/mmu: Check write tracking in all address spaces

Peiyang He peiyang_he@smail.nju.edu.cn RDMA/rxe: Fix OOB in free_rd_atomic_resources()

-------------

Diffstat:

Documentation/filesystems/fscrypt.rst | 4 + Makefile | 4 +- arch/arm64/kvm/arm.c | 6 + arch/powerpc/perf/hv-gpci.c | 24 +- arch/riscv/kernel/compat_signal.c | 2 + arch/riscv/kernel/ptrace.c | 4 +- arch/s390/kvm/vsie.c | 1 + arch/x86/include/asm/cpufeatures.h | 4 +- arch/x86/kernel/cpu/amd.c | 28 ++- arch/x86/kvm/mmu/page_track.c | 32 ++- drivers/accessibility/speakup/main.c | 1 + drivers/base/power/main.c | 6 +- drivers/crypto/atmel-tdes.c | 5 +- drivers/crypto/mxs-dcp.c | 2 +- drivers/crypto/qce/aead.c | 58 +---- drivers/crypto/qce/common.c | 55 +---- drivers/crypto/qce/common.h | 16 +- drivers/crypto/qce/regs-v5.h | 4 - drivers/crypto/qce/sha.c | 30 +-- drivers/crypto/qce/sha.h | 1 - drivers/crypto/qce/skcipher.c | 97 +------- drivers/crypto/starfive/jh7110-rsa.c | 1 - drivers/fpga/dfl-fme-perf.c | 2 + drivers/hid/hid-ft260.c | 41 +++- drivers/hid/hid-magicmouse.c | 44 +++- drivers/hid/hid-nintendo.c | 13 +- drivers/hid/hid-uclogic-core.c | 12 +- drivers/hid/usbhid/hid-pidff.c | 21 +- drivers/infiniband/sw/rxe/rxe_qp.c | 3 +- drivers/isdn/hardware/mISDN/hfcpci.c | 12 +- .../platform/samsung/exynos4-is/fimc-is-regs.c | 1 + drivers/net/ethernet/ibm/ibmvnic.c | 30 ++- drivers/nvme/host/constants.c | 2 +- drivers/nvme/host/core.c | 32 +-- drivers/nvme/host/fabrics.c | 8 +- drivers/nvme/host/fault_inject.c | 2 +- drivers/nvme/host/fc.c | 8 +- drivers/nvme/host/multipath.c | 2 +- drivers/nvme/host/nvme.h | 4 +- drivers/nvme/host/pr.c | 10 +- drivers/nvme/target/admin-cmd.c | 24 +- drivers/nvme/target/core.c | 46 ++-- drivers/nvme/target/discovery.c | 14 +- drivers/nvme/target/fabrics-cmd-auth.c | 16 +- drivers/nvme/target/fabrics-cmd.c | 36 +-- drivers/nvme/target/io-cmd-bdev.c | 12 +- drivers/nvme/target/passthru.c | 10 +- drivers/nvme/target/rdma.c | 10 +- drivers/nvme/target/tcp.c | 17 +- drivers/nvme/target/zns.c | 30 +-- drivers/target/target_core_fabric_configfs.c | 8 + drivers/usb/c67x00/c67x00-sched.c | 4 +- drivers/usb/core/devio.c | 2 +- drivers/usb/core/hub.c | 7 +- drivers/usb/gadget/function/f_tcm.c | 2 +- drivers/usb/host/xhci-dbgtty.c | 15 +- drivers/usb/host/xhci-ring.c | 2 +- drivers/usb/misc/usbtest.c | 1 + drivers/usb/phy/phy-fsl-usb.c | 1 - drivers/usb/serial/option.c | 20 +- drivers/usb/serial/spcp8x5.c | 13 -- fs/exfat/nls.c | 1 + fs/ext4/crypto.c | 40 ++-- fs/ext4/ext4.h | 2 +- fs/ext4/extents.c | 55 ++--- fs/ext4/fast_commit.c | 35 ++- fs/ext4/ialloc.c | 4 + fs/ext4/mballoc.c | 4 +- fs/fuse/dir.c | 9 +- fs/fuse/file.c | 4 +- fs/jfs/inode.c | 2 +- fs/jfs/jfs_discard.c | 3 +- fs/jfs/jfs_extent.c | 10 + fs/nilfs2/ioctl.c | 251 ++++++++++----------- fs/smb/server/smb2pdu.c | 6 +- fs/smb/server/vfs_cache.c | 179 +++++++++++++-- fs/smb/server/vfs_cache.h | 4 +- fs/xfs/scrub/trace.h | 12 +- include/linux/nvme.h | 16 +- include/net/sch_generic.h | 1 + include/target/target_core_fabric.h | 2 + io_uring/io-wq.c | 9 +- kernel/bpf/offload.c | 10 +- kernel/bpf/verifier.c | 5 + kernel/events/core.c | 10 + mm/swapfile.c | 7 + net/bluetooth/hci_sync.c | 48 +++- net/bridge/br_multicast.c | 4 +- net/can/j1939/j1939-priv.h | 1 + net/can/j1939/main.c | 5 + net/can/j1939/socket.c | 55 +++++ net/core/dev.c | 6 + net/core/filter.c | 1 - net/ipv6/ah6.c | 29 ++- net/ipv6/seg6_local.c | 7 + net/nfc/nci/ntf.c | 26 ++- net/sched/sch_generic.c | 2 + net/smc/smc_clc.c | 67 +++--- net/smc/smc_core.c | 27 +-- net/smc/smc_pnet.c | 43 ++-- net/tls/tls_device.c | 3 +- net/xfrm/espintcp.c | 9 +- net/xfrm/xfrm_user.c | 2 +- security/selinux/ss/conditional.c | 12 +- sound/soc/codecs/nau8821.c | 13 ++ sound/usb/card.c | 14 +- sound/usb/midi.c | 2 + 107 files changed, 1133 insertions(+), 846 deletions(-)